Effect of composition and preparation method of (Pd), Co, Ce, Zr - metal-oxide catalysts on their activity in the reduction of nitrogen(I), (II) oxides with carbon monoxide

Abstract

Among the studied (Pd), Co-, Ce-, Zr-oxide catalysts including catalysts deposited on structured cordierite support, the catalyst prepared by co-deposition of ceria and cobalt oxide is characterized by higher activity in reaction of reduction of nitrogen(I), (II) oxides (CO + NO, N2O + NO + CO) compared with samples prepared by successive deposition. This may be caused by an increase in both mobility of surface oxygen and dispersity of components in the catalytic composition.